Portable hand-riveter.



P. S. MOE.

PORTABLE HAND RIVETER.

APPLICATION FILED MAY 27, 1908.

918,351 Patented Apr. 13, 1909.

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PETER S. MOE, CF CRESTON, WASHINGTON.

PORTABLE HAND-BIVETER.

Specification of Letters Patent.

Patented April 13, 1909.

Application filed May 27, 1908. Serial No. 435,316.

To all whom it may concern:

Be it known that I, PETER S. Mon, a citizen ofthe United States of America, residing at Creston, in the county of Lincoln and State of Vllashington, have invented new and useful Improvements in Portable Hand- Itiveters, of which the following is a specification.

This invention relates to a riveting device of the hand operated type employing a screw for upsetting the rivet.

The invention has for one of its objects to improve and simplify the construction and operation of a device of this character so as to be comparatively simple and inexpensive to manufacture, reliable in use and readily manipulatec Another object of the invention is the provision of a riveting device equipped with jaws for engaging the shank of the rivet preparatory to the insertion of the latter into the work so that the riveter can be held in any position and even inverted without the rivet dro ping out so as to permit harnesses, belts an the like to be riveted without re moving the same, the jaws being so arranged as to automatically disengage the rivet before the latter is finally upset.

lVith these objects in view and others as will appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of arts which will be more fully described ereinafter and set forth with particularity in'the claims appended hereto.

In the accompanying drawing which illustrates one of the embodiments of the construction, Figure 1 is a side view of the riveter with piarts thereof in section. Fig. 2 is a seotiona view on line 2-2 of Fig. 1 and showing portions in lan.

Similar reference aracters are employed to designate corresponding parts in the views.

Referring to the drawing A designates a frame of the riveter which may be any a proved construction and form and preferab y consisting of a base 1 and an arm 2 disposed over and parallel with the base and con stituting a substantial U-shaped structure resting on its side. The arm 2 has a vertical opening 3 that is threaded for receiving the screw 4 or upsetting element that has a head 5 provided with a bar or handle 6 whereby the u setting element can be conveniently turned. The lower end or upsetting portion 7 of the screw is in any approved shape for upsetting the rivet and in the present instance is designed more especially for upsetting rivets having tubular shanks.

The base 1 of the frame has a vertical opening 8 immediately below or in a line with the opening 3 which opening 8 has an annular shoulder 9 and a threaded portion 10 and arranged in the opening 8 is an anvil 11 preferably of hardened steel and provided with a cylindrical stem 12 that projects upwardly from the top of the base 1 and on which is slidably mounted a collar 13 that constitutes a rivet holder, the collar having its lower end disposed in the opening 8 and rovided with a flange 14 that engages the shoulder 9 of the said opening whereby the collar is prevented from being displaced. The anvil 11 has a threaded portion 15 that screws in the opening 8 and interposed between the head and collar 13 is a spring 16 that yieldingly holds the collar with its upper extremities above the top face of the anvil 11, the tension of the spring 16 being adjusted by screwing the anvil inwardly or outwardly.

In order to hold the rivet initially in position a pair of jaws 17 and 18 are mounted on the base 1 and adapted to turn on a bolt 19 that forms a pivot. This bolt passes through the opening 20 that is provided with a shoulder 21 on which bears one end of a helical spring 22. The other end of the spring bears on an adjusting nut 23 of the bolt 19 whereby the latter "l'rictionally holds the jaws against each other and the meeting edges 24 of the jaws 17 and 18 are beveled at 25 and are recessed at 26 for accommodating the shank of the rivet and by means of the beveled edges 01' the jaws the latter will be forced apart during the u )setting operation so as to release the head 01 the rivet in time to permit the rivet to be fully upset.

In operation the screw is moved to such a point as to readily permit the insertion of the work in the riveter after a rivet has been first applied. In ap )lying the rivet the head is seated on the anvil 11 and in the collar 13 so as to thereby bring the shank of the rivet directly in line with the upsetting screw. The jaws 17 and 18 are next closed around the shank of the rivet so as to prevent the latter from dropping out in case it is necessary to hold the riveter in inverted or any other position necessary for applying the work thereto. The screw is now turned in a direction for engagement with the shank of the rivet and as the rivet is upset the jaws will be spread apart so that the shank can be fully upset, it being understood that the collar or holder 13 yields downwardly as pressure is a plied by the screw so as not to interfere wit the riveting.

From the foregoing description, taken in connection with the accompanying drawing, the advantages of the construction and method of o oration will be readily apparent to those ski led in the art to which the invention appertains, and while I have described the principles of operation of the invention, together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made when desired as are within the scope of the claims.

I claim 1. A hand riveter comprising a frame having a base portion provided with openings, one of the openings being threaded, an anvil secured in the said threaded opening and provided with a shoulder, a sleeve on the anvil forming a rivet holder, a spring inserted between the shoulder and rivet holder for yieldingly holding the latter projected beyond the anvil, the tension of the spring being adjusted by screwing the anvil inwardly or outwardly, an upsetting screw supported on the frame in cooperative relation with the anvil, a pair of jaws adapted to engage the shank of the rivet to hold the same in position during the upsetting operai tion, a bolt passing through the jaws and through the other opening of the base for pivotally mounting the jaws on the latter, and an adjustable spring operating on the bolt for producing a frictional engagement between the jaws.

2. A riveter comprising a frame, an upsetting element thereon, an anvil disposed in cooperative relation with the said element, means on the anvil for engaging the head of a rivet, a pair of jaws mounted on the frame and releasably engaging the shank of the rivet, a pivot for the aws, a spring frictionally holding the jaws against each other, and means for adjusting the tension of the spring.

3. A riveter comprising a frame including a base having spaced openings, an adjustable anvil in one opening, a rivet-holding member yieldingly mounted on the anvil, a pair of jaws mounted on the base and arranged in overlapping relation at one end and adapted to engage the shank of the rivet, a bolt in the other opening of the base and passing through the overlapping portions of the jaws, and a spring arranged on the bolt and operating through the latter to hold the jaws frictionally in contact with each other and in contact with the base.

In testimony whereof I affix my signature in presence of two witnesses.

PETER S. MOE.

Witnesses:

W. H. HOWARD, Mon-ins GREENWOOD. 

